Delay lock loop

Details Delay lock loop Delay lock loop

H - Electricity

03

K

328/89

H03K 5/153 (2006.01) H03L 7/00 (2006.01) H04L 7/033 (2006.01)

Patent

CA 1159911

Abstract of the Disclosure A delay lock loop has a fixed delay element, an edge detector for detecting the edge transitions of pulses, analog or digital feedback circuitry related to the timing differences between the edge transitions of a pair of pulses and a variable delay device responsive to the feedback circuitry for adjusting the timing differences between a pair of pulses in response to the feedback signals. In the analog embodiment, the feedback may be a voltage related feedback with a varying voltage controlling a voltage responsive vari- able delay means. In the digital embodiment, the feedback may use a counter responsive to signals from an edge detecting flip-flop and the counter may control a programmable delay device.

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